A dimensional check is a quality control process used in manufacturing and metalworking to ensure that a part or component meets specified dimensions, tolerances, and geometric requirements. It is essential for maintaining precision, functionality, and compatibility in assembly.

Straightening is the process of correcting distortions, bends, or warping in a metal component caused by manufacturing operations like heat treatment, welding, forging, or machining. It ensures that parts meet required flatness and alignment specifications.